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SN54LS138J

1-OF-8 DECODER/ DEMULTIPLEXER

Partnumber Manufacturer Quantity Availability
SN54LS138J 15 In Stock

Description and Introduction

1-OF-8 DECODER/ DEMULTIPLEXER The SN54LS138J is a 3-to-8 line decoder/demultiplexer manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Type**: Decoder/Demultiplexer  
- **Number of Input Lines**: 3  
- **Number of Output Lines**: 8 (active-low)  
- **Supply Voltage Range (VCC)**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C (military-grade)  
- **Propagation Delay (Max)**: 27 ns  
- **Power Dissipation (Max)**: 93 mW  
- **Package Type**: Ceramic DIP (Dual In-line Package)  
- **Pin Count**: 16  

### **Descriptions:**  
The SN54LS138J is a high-speed TTL logic decoder/demultiplexer designed to accept three binary inputs and activate one of eight mutually exclusive outputs based on the input combination. It includes three enable inputs (two active-low and one active-high) for cascading and control.  

### **Features:**  
- **High-Speed Operation**: Optimized for fast switching.  
- **Low Power Consumption**: LS (Low-Power Schottky) technology.  
- **Multiple Enable Inputs**: Allows easy expansion for larger decoders.  
- **Wide Operating Temperature**: Suitable for harsh environments.  
- **Active-Low Outputs**: Simplifies interfacing with other logic circuits.  

This part is part of the SN54 series, which is designed for military and aerospace applications with extended temperature and reliability requirements.

Application Scenarios & Design Considerations

1-OF-8 DECODER/ DEMULTIPLEXER

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